mermaid: true

例如本篇文章的配置：

---

layout: post title: Github 博客画流程图 category: how2blog tags: [tools, study, markdown] mermaid: true

graph TD
A[Christmas] -->|Get money| B(Go shopping)
B --> C{Let me think}
C -->|One| D[Laptop]
C -->|Two| E[iPhone]
C -->|Three| F[Car]

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